The paper explores cache strategies for multimedia. Although many architectural improvements have been designed for multimedia, the cache structure and the standard caching policies of general-purpose processors exhibit poor performance in exploiting the 2D spatial locality typical of programs handling and processing images. In this paper we propose a novel caching approach suitably tailored to the requirement of multimedia programs. Our proposal exploits hardware pre-fetching for allocating in cache blocks of data that satisfy the 2D spatial locality requirements. Results refer to a benchmark suite of multimedia program including MPEG decoding and image processing programs with different data dependency and access scheme to image data.
Exploiting Cache in Multimedia / Cucchiara, Rita; M., Piccardi; Prati, Andrea. - STAMPA. - 1:(1999), pp. 345-350. (Intervento presentato al convegno 6th International Conference on Multimedia Computing and Systems (IEEE ICMCS 99) tenutosi a FLORENCE, ITALY nel JUN 07-11, 1999).
Exploiting Cache in Multimedia
CUCCHIARA, Rita;PRATI, Andrea
1999
Abstract
The paper explores cache strategies for multimedia. Although many architectural improvements have been designed for multimedia, the cache structure and the standard caching policies of general-purpose processors exhibit poor performance in exploiting the 2D spatial locality typical of programs handling and processing images. In this paper we propose a novel caching approach suitably tailored to the requirement of multimedia programs. Our proposal exploits hardware pre-fetching for allocating in cache blocks of data that satisfy the 2D spatial locality requirements. Results refer to a benchmark suite of multimedia program including MPEG decoding and image processing programs with different data dependency and access scheme to image data.
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